Fuel-mixing device



Jan. 14, 1930. ROGACEWICZ ET AL 1,743,622

FUEL MIXING DEVICE Filed Sept. 14, 1925 Julius Fogfacewzcz BY 'FEZZ'): iogfiecen z'cz Wm, Mum

ATTORNEYS I Patented Jan. 14, 1930 UNITED STATES PATENT ,OFFICEQIT FUEL-MIXING DEVICE Application filed September 14, 1925. Serial No. 56,302.

The invention relates to fuelmixing devices for internal combustion engines and has for its object the obtaining of a simple unit construction which may be readily attached to the engine and which greatly increases its eificiency. To this end the invention consists in the construction as hereinafter set forth.

The figure of drawing is a transverse section through a fuel mixing device constructed. in accordance with the teachings of this invention, showing the same in position with respect to the intake manifold and the cylinder block of an engine.

Referring to the drawing, U indicates that portion of the intake manifold which abuts against the cylinder block T. Our improved fuel mixing deviceris preferably assembled with the gasket A positioned between the intake manifold and the cylinder block and is retained thereby in the intake manifold to assist in sub-dividing andvaporizing the fuel. As specifically shown, A is the gasket which is formed of the thin sheet metal stampings B, B and an asbestos stamping C assembled to form a compressible gasket such as used on internal combustion engines.

Attached to the gasket is the fuel-mixing unit which comprises the semi-spherical screens G and H having annular flanges I which are embraced by the metallic members B, B of the gasket. The screen G is preferably of coarser mesh than the screen H and is arranged to extend inward into the engine block while the screen H of finer mesh extends outward into the manifold. Between these screens is preferably arranged a suction operated mixer which consists of the rotary fan J mounted upon a shaft K with washers or collars L, L on opposite sides thereof, said shaft being mounted in a ring M. The ring M is preferably formed of sheet metal having lugs N which extend between the flanges I of the screens G and H and lugs O which are bent over to engage and retain the shaft K. Thus the fan is freely revolubly supported on the shaft in the chamber which is surrounded by the semi-spherical screens and when the mixture is passing through "the manifold the said screens will effect a thorough commingling.

In operation, when the unit is secured within the manifold and block of the engine, the liquid fuel which is carried in suspension by the air current, will impinge against and be subdivided by the outer screen and will be 5 carried with the air through the space between the screens. Here the rotary fan will effect a thorough commingling and the mixture will then pass through the inner screen. This inner screen will be of a higher temperature by reason of its beinglocated within the engine block and will assist in vaporizing the liquid but on account of its coarser mesh will aiford less resistance to the expanded mixture. The effect of the whole arrangement is to introduce into the engine cylinders only a thoroughly commingled or gasified mixture which ensures rapid and perfect combustion.

What we claim as our invention is:

1. A gaseous fuel mixing device comprising a pair of metallic plates, a packing ar- I ranged betweenthe said plates, a pair of dished foraminous screens having abutting parallel marginal portions clamped between the said packing and one of the said plates. a ring arranged within the chamber between the said screens and extending in a plane perpendicular to the plane of the said marginal portions, projections on the said ring, a shaft extending across the said ring having a. bearing in the said projections, and revoluble means carried by the said shaft for commingling the mixture passing through the said screens.

2. A gaseous fuel mixing device comprising a pair of metallic plates, a packing arranged between said plates, apair of oppositely arranged hemi-spherical foraminous screens each having a marginal portion adapt- 90 ed to be clamped between the packing and one of said metallic plates, an annular mem ber arranged Within said screens in a plane perpendicular to said plates, a shaft perpendicular to said plates journaled at its opposite ends in said annular member and a rev oluble mixing member mounted on said shaft and arranged substantially in the plane of said plates.

In testimony whereof We afiix our signa- 

